{
\def\sym#1{\ifmmode^{#1}\else\(^{#1}\)\fi}
\begin{tabular}{l*{2}{c}}
\toprule
                    &\multicolumn{2}{c}{Assigned to treatment}  \\\cmidrule(lr){2-3}
                    &\multicolumn{1}{c}{(1)}         &\multicolumn{1}{c}{(2)}         \\
\midrule
BA listserv         &       0.016         &       0.039         \\
                    &     [0.040]         &     [0.056]         \\
\addlinespace
Democrat            &       0.008         &       0.018         \\
                    &     [0.053]         &     [0.078]         \\
\addlinespace
Republican          &       0.002         &      -0.046         \\
                    &     [0.061]         &     [0.089]         \\
\addlinespace
Attendance at past BA events&      -0.073\sym{**} &      -0.063         \\
                    &     [0.037]         &     [0.049]         \\
\addlinespace
Age                 &                     &      -0.001         \\
                    &                     &     [0.001]         \\
\addlinespace
Male                &                     &      -0.025         \\
                    &                     &     [0.045]         \\
\addlinespace
White               &                     &      -0.158\sym{**} \\
                    &                     &     [0.077]         \\
\addlinespace
Black               &                     &      -0.102         \\
                    &                     &     [0.095]         \\
\addlinespace
Hispanic/Latino     &                     &       0.064         \\
                    &                     &     [0.157]         \\
\addlinespace
Asian               &                     &      -0.063         \\
                    &                     &     [0.196]         \\
\midrule
Observations        &         900         &         496         \\
\bottomrule
\end{tabular}
}
